As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT SIDE INTERNAL FUSELAGE FLOOR SILL AT APPROX LBL 42 HAS CORROSION IN VARIOUS AREAS FROM FS 559.0 TO 559.0+ 80. (C-CHECK) RO: 04/28/2019 BLENDED OUT CORROSION AT VARIOUS LOCATIONS ON FLOOR SILL AT LBL 42 BETWEEN FS 559.0 TO FS 559.0 + 80 IAW SRM AND REO.